annuller
nounmasculine/ɐnulɐˈðoɾ/rare
a·nu·la·dor
Definition
One who or that which annuls; that has the power to make null.
The court acted as the annuller of the illegal agreement.
This device is a signal annuller used in telecommunications.
Common collocations
debt annullerannulling effect
Etymology
De 'anular' + sufixo '-dor'.